:py:mod:`airflow.providers.google.leveldb.operators.leveldb`
============================================================

.. py:module:: airflow.providers.google.leveldb.operators.leveldb


Module Contents
---------------

Classes
~~~~~~~

.. autoapisummary::

   airflow.providers.google.leveldb.operators.leveldb.LevelDBOperator


.. py:class:: LevelDBOperator(*, command, key, value = None, keys = None, values = None, leveldb_conn_id = 'leveldb_default', name = '/tmp/testdb/', create_if_missing = True, create_db_extra_options = None, **kwargs)

   Bases: :py:obj:`airflow.models.BaseOperator`

   Execute command in LevelDB

   .. seealso::
       For more information on how to use this operator, take a look at the guide:
       :ref:`howto/operator:LevelDBOperator`

       :param command: command of plyvel(python wrap for leveldb) for DB object e.g.
           ``"put"``, ``"get"``, ``"delete"``, ``"write_batch"``.
       :param key: key for command(put,get,delete) execution(, e.g. ``b'key'``, ``b'another-key'``)
       :param value: value for command(put) execution(bytes, e.g. ``b'value'``, ``b'another-value'``)
       :param keys: keys for command(write_batch) execution(List[bytes], e.g. ``[b'key', b'another-key'])``
       :param values: values for command(write_batch) execution e.g. ``[b'value'``, ``b'another-value']``
       :param leveldb_conn_id:
       :param create_if_missing: whether a new database should be created if needed
       :param create_db_extra_options: extra options of creation LevelDBOperator. See more in the link below
           `Plyvel DB <https://plyvel.readthedocs.io/en/latest/api.html#DB>`__

   .. py:method:: execute(self, context)

      Execute command in LevelDB

      :returns: value from get(str, not bytes, to prevent error in json.dumps in serialize_value in xcom.py)
          or None(Optional[str])
      :rtype: Optional[str]